I apologise for any confusion on my end. Before I begin with the code replacement, I need the required 9 video URLs which are not provided in this request. The video URLs are essential for the successful completion of this task. As soon as I obtain them, I can proceed with the HTML code replacement. Could you please supply the URLs of the videos? This will allow me to replace "pexels1.mp4" up to "pexels9.mp4" with actual video URLs.
